package Concurrency2.Chapter04_Visibility_Orderliness;

/**
 * 用于复现有序性问题
 */
public class T03_Orderliness {
    private static /*volatile*/ int x = 0, y = 0;
    private static int a = 0, b = 0;

    public static void main(String[] args) throws InterruptedException {

        for (; ; ) {
            a = 0;
            b = 0;
            x = 0;
            y = 0;
            Thread t1 = new Thread(() -> {
                a = 1;
                x = b;
            });

            Thread t2 = new Thread(() -> {
                b = 1;
                y = a;
            });
            t1.start();
            t2.start();
            t1.join();
            t2.join();
            if (x == 0 && y == 0) {
                System.err.println("x: " + x + " ,y: " + y);
            }
        }
    }
}
